Key points from article :
Nanobots made from origami-folded DNA sheets.
DNA sheets contain blood-clotting drugs to shut off the blood supply to tumours.
Molecule release trigger responds to a chemical signature on the outside of cancer cells.
Could deliver toxic chemotherapy drugs with less side effects.
Doubled the life expectancy of non-treated mice.
Strategy can be used for many types of solid tumour cancers.
The study was published in the journal Nature Biotechnology.
